Microchip Technology Inc

LED EL Drivers

The Serial SuperFlash® Kit 2 allows evaluation of Microchip's Serial Flash Devices which are made using the SST SuperFlash® technology. The Serial SuperFlash Kit 2 contains three Serial Flash Daughter Boards. The Serial Flash Daughter Board is an evaluation board designed to interface with the mikroBUS™ connector on the Explorer 16/32 Development Board (DM240001-2). It can also interface with the PICtail™ Plus connector located on the Explorer 16 Development Board (DM240001).
The MAQ3203 is a hysteretic, step-down, constant-current, High-Brightness LED (HB LED) driver. It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications.
The MIC3202/MIC3202-1 is a hysteretic step-down, constant-current, High-Brightness LED (HB LED) driver. It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications. This board enables the evaluation of the MIC3202/MIC3202-1 for 1A LED current. The board is optimized for ease of testing, with all the components on a single side. The device operates from a 6V to 37V input voltage range, and includes an integrated 1.0A MOSFET. When the input voltage approaches and crosses UVLO threshold, the internal 5V VCC is regulated and the integrated MOSFET is turned on if EN pin and DIM pin are high. The inductor current builds up linearly. When the CS pin voltage hits the VCS(MAX) with respect to VIN, the internal MOSFET is turned off and the Schottky diode takes over and returns the current to VIN. Then the current through inductor and LEDs starts decreasing. When CS pin hits VCS(MIN), the internal MOSFET is turned on and the cycle repeats.
The MIC3203/MIC3203-1 is a hysteretic step-down, constant-current, High-Brightness LED (HB LED) driver. It provides an ideal solution for interior/exterior lighting, architectural and ambient lighting, LED bulbs, and other general illumination applications. This board enables the evaluation of the MIC3203/MIC3203-1 for 1A LED current. The board is optimized for ease of testing, with all the components on a single side. The device operates from a 4.5V to 42V input voltage range, and controls an external power MOSFET to drive high current LEDs. When the input voltage approaches and crosses UVLO threshold, the internal 5V VCC is regulated and the external MOSFET is turned on if EN pin and DIM pin are high. The inductor current builds up linearly. When the CS pin voltage hits the VCS(MAX) with respect to VIN, the external MOSFET is turned off and the Schottky diode takes over and returns the current to VIN. Then the current through inductor and LEDs starts decreasing. When CS pin hits VCS(MIN), the external MOSFET is turned on and the cycle repeats.
MIC3223TE-BOOST Evaluation Board
MIC3231TE-Sepic Evaluation Board
The MIC3232 is a constant current boost switching controller specifically designed to power one or more strings of high power LEDs. The MIC3232 has an input voltage range from 6V to 45V and is ideal for a variety of applications.
This evaluation board (EVB) is designed for the MIC3263. The MIC3263 is a high-efficiency Pulse Width Modulation (PWM) boost switching regulator that is optimized for constant-current WLED driver backlighting applications. The MIC3263 drives six channels of up to ten low-power WLEDs per channel. Each channel is matched in current to within ±3% for constant brightness across the screen and can be programmed from 15mA to 30mA.
The MIC4801 is a high efficiency, single channel, White LED (WLED) driver. This constant current linear device is designed to drive a single high power WLED up to 600mA and features a low dropout of 130mV at 400mA (typical). Brightness is controlled through an Ultra Fast PWM™ interface which can operate from 1% to 100% duty cycle.
The MIC4802 is a high efficiency, single channel, White LED (WLED) driver. This constant current linear device is designed to drive a single high power WLED up to 800mA and features a low dropout of 280mV at 800mA (typical). Brightness is controlled through an Ultra Fast PWM™ interface which can operate from 1% to 100% duty cycle.
The MIC4811 is a high efficiency linear White LED (WLED) driver; it is designed to drive up to six high current WLEDs while maintaining constant current in each channel. The MIC4811 features Dynamic Average Matching™ (DAM™) which is specifically designed to provide optimum matching across all WLEDs. These high accuracy (±1% typical) current regulated WLED channels ensure uniform display illumination under all conditions. A typical dropout of 100mV at 50mA is expected.
The MIC4812 is a high efficiency linear White LED (WLED) driver; it is designed to drive up to six high current WLEDs while maintaining constant current in each channel. The MIC4812 features Dynamic Average Matching™ (DAM™) which is specifically designed to provide optimum matching across all WLEDs. These high accuracy (±1% typical) current regulated WLED channels ensure uniform display illumination under all conditions. A typical dropout of 190mV at 100mA is expected.